Will USB-6251 execute multiple tasks at the same time?

Hi all,
I have an application controling an experiment and logging data using a USB 6251. One measurement uses Two Edge Seperation , and takes a while to complete (20 to 30 seconds). Meanwhile I need to execute another task repeatedly to sense a digital input pin. Does anyone know if the USB 6251 can execute a second task while it's busy doing the edge seperation task? So far I haven't found anything in the documentation or on the forums.
BTW I can't just 'try it and see', or at least it's very tricky to do so. The control system is at the top of a scaffold tower, a long way from my development system. Every code change has to be deployed and installed to test it.
I recomend you avoid such an installation if you can  )  It makes for a tough time debugging.
Thanks for any help.
Bandit.
Message Edited by Bandit on 03-20-2007 12:05 PM

A small addition to YatimM's answer
You can execute two tasks together as long as they are not accessing the same channels or digital lines.
For acquisiton on analog input channels, you cannot execute 2 tasks simultaneously even if they scan for 2 seperate sets of channels
For Ex: task 1: acquiring from analog channels 0 to 3 and task2 : acquiring from analog channels 4 to 6, will still give a 'device reserved' error, because a single ADC is available and used for multiplexing all channels in a task/ scan list and the second task will give up this error

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